Distributed storage timestamped revisions
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United States of America Patent
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May 20, 2014
Grant Date -
May 5, 2011
app pub date -
Jul 16, 2010
filing date -
Oct 29, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
Various revisions of encoded data slices stored in a distributed storage system can be time stamped to assist in retrieving desired data revisions. Each of the multiple revisions of the encoded data slices may have the same name, but different revision numbers. An encoded data slice, which is received at a distributed storage unit along with a write command, slice name, and the revision number, is time stamped. The timestamp and revision number are stored in conjunction with the data slice. A desired encoded data slice can be retrieved by sending a read command, slice name, and timeframe to the distributed storage unit. The appropriate encoded data slice can be retrieved by determining which revision number has a timestamp most closely matching the requested timeframe.
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